Glencore put zinc sulphide operations at the Portovesme plant on care and maintenance in November 2021, but continued production of zinc recycling and lead.
Reuters sources say the exchange was planning to discuss banning new deliveries of Russian metal so its warehouses cannot be used to offload hard-to-sell stock.
Two dozen highly active metal compounds containing cobalt, nickel, rhodium, palladium, silver, europium, iridium, platinum, molybdenum and gold can be used to treat fungal infections.
Finland has thus far not collected taxes on minerals but the government now proposes introducing a royalty of 0.6% on the taxable value of metallic minerals.